Calvin Klein CK20541S Sunglasses pair the brand's clean aesthetic with a square acetate frame and gradient-lens options. Ideal for everyday sun protection with a contemporary, structured silhouette. Key attributes: Black | Acetate | Prescription-ready | Includes case and cleaning cloth | Square silhouette | Full-rim frame | Gradient lens option | Dimensions & fit: Lens width: 57 mm | Lens height: 51 mm | Bridge width: 19 mm | Temple/arm length: 140 mm | Composition & care: Acetate | Wipe lenses with a microfiber cloth; store in the supplied case.